Blu-ray and HD exclusives aren't so exclusive overseas
From Sarah McBride's story:
...Several dozen titles out in the U.S. exclusively on Blu-ray are available overseas on HD DVD. While studios like Sony, News Corp.'s Twentieth Century Fox and Walt Disney Co. tout their unswerving allegiance to Blu-ray stateside, in other countries titles like Sony's "xXx," Fox's "Fantastic Four: Rise of the Silver Surfer" and Disney's "The Prestige" are available on HD DVD.
No overseas travel is necessary to tap into this stream of alternative discs. A visit to a site like amazon.co.uk does the trick, albeit typically at a higher price than in the U.S. For those reluctant to pay shipping costs from Europe or Asia or worried about currency conversions, gray-market U.S.-based sites such as xploitedcinema.com offer selections.
The loophole lies in distribution. Studios often farm out DVD sales in other countries to a patchwork of companies with expertise in those markets. Those partner companies sometimes have arrangements to use a high-definition format different from that of the U.S. studio.